Sebastian said:come on man?
blowing up like that?
how can other people can maintain their sanity? it's delusional think that everything can be achieved through violence my man.
You didn't get Sindar's point and what you are saying is precisely Sindar's point...... When Kogami blows the guy into pieces in the first scene, the girl becomes traumatized and loses it, and it sets up the show.... And, because of this scene, you get an idea about the gun......
If you want good anime with female leads: Angel Beats, Kill la Kill, Fate/Zero, Bakuman(though a supporting character, Miho Azuki is good enough), Danganronpa, Mirai Nikki, Psycho-Pass, Phantom: Requiem for the Phantom, Shingeki no Kyojin, Steins; Gate.
Note: Some of these characters may not necessarily be 'strong', both literally and character wise.......